Abstract: A novel IPN hydrogel designed to recognize MMTCA is prepared by applying the molecular-imprinting method. The IPN is characterized by FT-IR, DSC, and SEM. Langmuir analysis shows that an equal class of adsorption is formed in the hydrogel. The adsorption equilibrium constant and the maximum adsorption capacity are evaluated, and the effect of the pH on MMTCA adsorption is discussed. The selectivity of the imprinted polymer for MMTCA is studied in aqueous solutions of MMTCA/aspirin/riboflavin. The results suggest that the MMTCA-imprinted polymer shows superior selectivity for MMTCA as compared to riboflavin and aspirin. The reproducibility of the imprinted polymer to MMTCA is also studied
Template and target information: MMTCA, 1-(4-methoxyphenyl)-5-methyl-1,2,3-triazol-4-carboxylic acid
Author keywords: interpenetrating polymer network (IPN), molecular imprinting, MMTCA, Poly(acrylic acid), poly(vinyl alcohol)